20039760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2141}}^1$

素因数の和:2173

約数の個数: 120

約数和(自身を含む): 72510984

約数和(自身を除く): 52471224

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2141, 2340, 3120, 4282, 4680, 6423, 8564, 9360, 10705, 12846, 17128, 19269, 21410, 25692, 27833, 32115, 34256, 38538, 42820, 51384, 55666, 64230, 77076, 83499, 85640, 96345, 102768, 111332, 128460, 139165, 154152, 166998, 171280, 192690, 222664, 250497, 256920, 278330, 308304, 333996, 385380, 417495, 445328, 500994, 513840, 556660, 667992, 770760, 834990, 1001988, 1113320, 1252485, 1335984, 1541520, 1669980, 2003976, 2226640, 2504970, 3339960, 4007952, 5009940, 6679920, 10019880, 20039760]

約数ペア:

[(1, 20039760), (2, 10019880), (3, 6679920), (4, 5009940), (5, 4007952), (6, 3339960), (8, 2504970), (9, 2226640), (10, 2003976), (12, 1669980), (13, 1541520), (15, 1335984), (16, 1252485), (18, 1113320), (20, 1001988), (24, 834990), (26, 770760), (30, 667992), (36, 556660), (39, 513840), (40, 500994), (45, 445328), (48, 417495), (52, 385380), (60, 333996), (65, 308304), (72, 278330), (78, 256920), (80, 250497), (90, 222664), (104, 192690), (117, 171280), (120, 166998), (130, 154152), (144, 139165), (156, 128460), (180, 111332), (195, 102768), (208, 96345), (234, 85640), (240, 83499), (260, 77076), (312, 64230), (360, 55666), (390, 51384), (468, 42820), (520, 38538), (585, 34256), (624, 32115), (720, 27833), (780, 25692), (936, 21410), (1040, 19269), (1170, 17128), (1560, 12846), (1872, 10705), (2141, 9360), (2340, 8564), (3120, 6423), (4282, 4680)]